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Metatorbernite Mineral Data

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General Metatorbernite Information

Help on Chemical  Formula: Chemical Formula: Cu(UO2)2(PO4)2•8(H2O)
Help on Composition: Composition: Molecular Weight = 937.67 gm
   Uranium     50.77 %  U    57.60 % UO2
   Copper       6.78 %  Cu    8.48 % CuO
   Phosphorus   6.61 %  P    15.14 % P2O5
   Hydrogen     1.72 %  H    15.37 % H2O
   Oxygen      34.13 %  O
              ______        ______ 
              100.00 %       96.59 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu(UO2)2(PO4)2•8(H2O)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1916
Help on Locality: Locality: Schneeberg, Sachsen (Saxony), Germany Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the lower hydrate of tobernite.
Help on Name Pronunciation: Name Pronunciation: Metatorbernite + Pronunciation Say METATORBERNITE

Metatorbernite Image

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Comments: Green, square, tabular crystals of metatorbernite on matrix.
Location: Wheal Basset, Illogan, Cornwall, England, UK. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

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  Metatorbernite   Schoepite

Comments: Green, tabular crystals of metatorbernite and acicular, yellow schoepite on matrix.
Location: Musonoi mine, Kolwezi, Shaba, (Katanga), Congo (Zaïre). Scale: Picture size 2.5 mm.
© Paul M. Schumacher

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  Metatyuyamunite   Metatorbernite

Comments: Yellow, platy metatyuyamunite and transparent, tabular green metatorbernite crystals with a minor amount of white, snowy-looking saleeite.
Location: Mashamba West Mine, Kolwezi, Shaba (Katanga), Congo (Zaïre). Scale: Picture size 0.5 cm.
© Paul M. Schumacher

Metatorbernite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.48328
Help on Cell Dimensions: Cell Dimensions: a = 6.969, c = 17.306, Z = 2; V = 840.50 Den(Calc)= 3.70
Help on Crystal System: Crystal System: Tetragonal - Dipyramidal H-M Symbol (4/m) Space Group: P 4/n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.68(1), 8.71(1), 3.48(0.8),

Physical Properties of Metatorbernite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Light green, Dark green.
Help on Density: Density: 3.7 - 3.8, Average = 3.75
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Vitreous - Adamantine
Help on Streak: Streak: light green

Optical Properties of Metatorbernite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.097 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.111 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1689,KPDmeas= 0.1667,KC= 0.152
Ncalc = 1.56 - 1.58
Help on Optical Data: Optical Data: Uniaxial (+), w=1.624, e=1.626, bire=0.0020.

Calculated Properties of Metatorbernite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.35 gm/cc
note: Specific Gravity of Metatorbernite =3.75 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0038218599
Boson Index = 0.9961781401
Help on Photoelectric: Photoelectric: PEMetatorbernite =1,292.44 barns/electron
U=PEMetatorbernite x relectron=4,331.50 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 3,867,593.03 (Gamma Ray American Petroleum Institute Units)
Concentration of Metatorbernite per GRapi unit = 258.56 (PPB)

Metatorbernite is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 10 cm box) 7.86 ± 1.97 grams of pure Metatorbernite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 786.45 ±196.61 grams of pure Metatorbernite .

Estimated Radioactivity from Metatorbernite - very strong
Curies (Ci)
If Held in Hand
For One Hour
1000 gm / 7.99 cm 90,879,176 2.46E-03 3,867,593.03 1,271.54
100 gm / 3.71 cm 9,087,918 2.46E-04 386,759.30 127.15
10 gm / 1.72 cm 908,792 2.46E-05 38,675.93 12.72
1 gm / 7.99 mm 90,879 2.46E-06 3,867.59 1.27
0.1 gm / 3.71 mm 9,088 2.46E-07 386.76 0.13
0.01 gm / 1.72 mm 909 2.46E-08 38.68 0.01
0.001 gm / 0.80 mm 91 2.46E-09 3.87 0.00

Weight of pure Metatorbernite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.75 gm/cc.*
Goverment Estimate of Average Annual Exposure ( 360 mRem) **
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem

Metatorbernite Classification

Help on  Dana Class: Dana Class: 40.02a.13.02 (40)Hydrated Phosphates, etc
  (40.02a)where A++ (B++)2 (XO4) � x(H2O), containing (UO2)++
  (40.02a.13)Dana Group
40.02a.13.01 Torbernite Cu(UO2)2(PO4)2•8-12(H2O) I 4/mmm 4/m 2/m 2/m
40.02a.13.02 Metatorbernite Cu(UO2)2(PO4)2•8(H2O) P 4/n 4/m
Help on  Strunz Class: Strunz Class: 08.EB.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.E - Uranyl Phosphates and Arsenates
  08.EB -UO2:RO4 = 1:1
08.EB.10 Bassetite Fe(UO2)2(PO4)2•8(H2O) P 21/m 2/m
08.EB.10 Lehnerite Mn[UO2/PO4]2•8(H2O) P 21/n 2/m
08.EB.10 Metazeunerite Cu(UO2)2(AsO4)2•8(H2O) P 4/n 4/m
08.EB.10 Meta-autunite Ca(UO2)2(PO4)2•2-6(H2O) P 4/nmm 4/m 2/m 2/m
08.EB.10 Metauranocircite Ba(UO2)2(PO4)2•6-8(H2O) P 21 2
08.EB.10 Metauranospinite Ca(UO2)2(AsO4)2•8(H2O) P 4/nmm 4/m 2/m 2/m
08.EB.10 Metaheinrichite Ba(UO2)2(AsO4)2•8(H2O) P 21 2
08.EB.10 Metakahlerite Fe(UO2)2(AsO4)2•8(H2O) P 4/mmm 4/m 2/m 2/m
08.EB.10 Metakirchheimerite Co(UO2)2(AsO4)2•8(H2O) P 4/mmm 4/m 2/m 2/m
08.EB.10 Metalodevite Zn(UO2)2(AsO4)2•10(H2O) P 41/m 4/m
08.EB.10 Metanovacekite Mg(UO2)2(AsO4)2•4-8(H2O) P 4/n 4/m
08.EB.10 Metatorbernite Cu(UO2)2(PO4)2•8(H2O) P 4/n 4/m
08.EB.10 Przhevalskite Pb(UO2)2(PO4)2•4(H2O) Unk Tetra

Other Metatorbernite Information

Help on References: References: PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Metatorbernite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: 40.02a.13.02 Strunz No: 08.EB.10





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